"Cuba’s informal economy is an imperfect marketplace. Without advertising, it relies heavily on word-of-mouth, and its commercial activity tends to flourish in small circles — among neighbors, coworkers and other trusted acquaintances.

"Then came Revolico.com. Its name essentially translates as “disarray,” and while Havana residents jokingly call it “the Cuban eBay,” the site is really closer to Craigslist. For Cubans who make a living through the black market, it's a godsend."

Read the rest of the report on Revolico.com, which claims to be the third-most-visited site in Cuba, here on GlobalPost.

-- Deborah Bonello in Mexico City

Photo: Vendors sell spices, fruit, flowers and more every Sunday at the farmers market across the street from the Capitolio Nacional in Havana. Credit: Lianne Milton / For The Times